Add loose support for repair parts on the marketplace

Basically just let people buy and sell parts for video game consoles. A couple categories but overall pretty lax.

-Separate parts into OEM and aftermarket, allow buyers to filter between the two if they choose

-Pricecharting optional, if allowed then it only tracks OEM parts vs all aftermarket

-Specific aftermarket parts of noteworthy fame can have their own "Official" classification

-Allow buyers to filter by console and filter further by model, ie allow an Xbox 360 to be searched as 360 alone or further clarified to 360 slim

-If quality is a concern do not allow broken/ as-is parts upon immediate launch